Thanks Mr. Kjell,
I've just finished to implement another option... so good for me...
---
class CompareGUs
{
public:
bool operator()(const Glib::ustring &lhs, const Glib::ustring &rhs)
{
bool retVal = true;
gint comp_size = std::min<gint> (lhs.size(), rhs.size());
bool next = true;
for (gint it = 0; (it < comp_size) && next; it++)
{
switch (lhs.substr (it, 1).compare (rhs.substr (it, 1)))
{
case (-1):
next = false;
break;
case (0):
break;
case (1):
retVal = false;
next = false;
break;
}
}
return retVal;
}
};
std::map<Glib::ustring, Glib::ustring, CompareGUs> my_map;
---
Glus
2015-04-09 16:38 GMT+02:00 Kjell Ahlstedt <[email protected]>:
> Gtk::Application::create() calls gtk_init(), which calls
> setlocale(LC_ALL, ""). The call to setlocale() affects the sort order of
> Glib::ustring. Such strings are compared by calls to g_utf8_collate(). I
> don't understand why a period (.) is ignored when strings are sorted
> according to the rules of the user-specified locale (which in my case is
> sv_SE.UTF-8).
>
> You can avoid the strange sort order by using a std::map<std::string,
> Glib::ustring> instead of a std::map<Glib::ustring, Glib::ustring>,
> provided all your map's keys contain only ascii characters.
>
> Kjell
>
> Den 2015-04-09 12:56, Glus Xof skrev:
>
>
> 2015-04-08 21:33 GMT+02:00 Glus Xof <[email protected]>:
>
>> Hi guys,
>>
>> I write a simple code (see at the bottom) to ask you why the order
>> sequence of values listed in the 'treeview' and in the "2nd Sequence" don't
>> correspond with the "1st Sequence"...
>>
>> I mean, in the "1st Sequence" I get,
>>
>> .1 ==> Point -- One
>> .2 ==> Point -- Two
>> .3 ==> Point -- Three
>> 01 ==> Zero -- One
>> 02 ==> Zero -- Two
>> 11 ==> One -- One
>>
>> Which is the desired sequence order... but in the "2nd..." (elaborated
>> in a Gtk Application context...)
>>
>> 01 * > Zero -- One
>> 02 * > Zero -- Two
>> .1 * > Point -- One
>> 11 * > One -- One
>> .2 * > Point -- Two
>> .3 * > Point -- Three
>>
>>
>> What happens, here ??
>>
>
> Can't yet understand why the sign pointer (.) seems not to be
> significant at Glib::ustring key comparisons when std::map values are
> extracted when iterate...
>
> How can manage it ?
>
>
>> Glus
>>
>> ----
>>
>> #include <gtkmm.h>
>> #include <iostream>
>> #include <map>
>>
>> class MainWindow
>> :
>> public Gtk::Window
>> {
>> public:
>>
>> MainWindow();
>> virtual ~MainWindow();
>>
>> private:
>>
>> void update_values();
>> void fill_treeview();
>>
>> void on_button_quit_clicked();
>>
>> std::map<Glib::ustring, Glib::ustring> my_map2;
>>
>> // Gtkmm widgets...
>> Gtk::ScrolledWindow scrwindow;
>> Gtk::TreeView treeview;
>>
>> Gtk::Box vbox;
>>
>> Gtk::ButtonBox bbox;
>> Gtk::Button button_quit;
>>
>> class ModelColumns
>> :
>> public Gtk::TreeModelColumnRecord
>> {
>> public:
>>
>> ModelColumns()
>> {
>> add (nid);
>> add (code);
>> add (vlue);
>> }
>>
>> Gtk::TreeModelColumn<gint> nid;
>> Gtk::TreeModelColumn<Glib::ustring> code;
>> Gtk::TreeModelColumn<Glib::ustring> vlue;
>> }
>> model_columns;
>>
>> Glib::RefPtr<Gtk::ListStore> refListStore;
>>
>> Gtk::TreeRow row;
>>
>> };
>>
>> MainWindow::MainWindow()
>> :
>> vbox (Gtk::ORIENTATION_VERTICAL),
>>
>> button_quit ("Quit"),
>>
>> refListStore (Gtk::ListStore::create (model_columns))
>> {
>> set_title ("TreeView Test");
>> set_border_width (10);
>>
>> treeview.set_enable_search (false);
>> treeview.set_model (refListStore);
>>
>> treeview.append_column ("Nº Id", model_columns.nid);
>> treeview.append_column ("Code", model_columns.code);
>> treeview.append_column ("Value", model_columns.vlue);
>>
>> if (Gtk::CellRenderer * c_nid = treeview.get_column_cell_renderer (0))
>> c_nid->set_alignment (0.5, 0.0);
>>
>> if (Gtk::CellRenderer * c_code = treeview.get_column_cell_renderer
>> (1))
>> c_code->set_alignment (0.5, 0.0);
>>
>> scrwindow.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_NEVER);
>> scrwindow.add (treeview);
>>
>> bbox.set_margin_top (10);
>> bbox.pack_start (button_quit, Gtk::PACK_SHRINK);
>> bbox.set_layout (Gtk::BUTTONBOX_END);
>>
>> button_quit.signal_clicked().connect (
>> sigc::mem_fun (*this, &MainWindow::on_button_quit_clicked));
>>
>> vbox.pack_start (scrwindow);
>> vbox.pack_start (bbox, Gtk::PACK_SHRINK);
>>
>> add (vbox);
>>
>> fill_treeview();
>>
>> show_all_children();
>> }
>>
>> void
>> MainWindow::update_values()
>> {
>> my_map2.insert (std::pair<Glib::ustring, Glib::ustring> ("02", "Zero
>> -- Two"));
>> my_map2.insert (std::pair<Glib::ustring, Glib::ustring> (".2", "Point
>> -- Two"));
>> my_map2.insert (std::pair<Glib::ustring, Glib::ustring> ("11", "One
>> -- One"));
>> my_map2.insert (std::pair<Glib::ustring, Glib::ustring> ("01", "Zero
>> -- One"));
>> my_map2.insert (std::pair<Glib::ustring, Glib::ustring> (".1", "Point
>> -- One"));
>> my_map2.insert (std::pair<Glib::ustring, Glib::ustring> (".3", "Point
>> -- Three"));
>> }
>>
>> void
>> MainWindow::fill_treeview()
>> {
>> if (!refListStore->children().empty())
>> refListStore->clear();
>>
>> update_values();
>>
>> std::cout << "2nd Sequence:" << std::endl;
>>
>> // C++11 for...
>> for (auto &it : my_map2)
>> {
>> std::cout << it.first << " * > " << it.second << std::endl;
>>
>> row = *(refListStore->append());
>>
>> row[model_columns.nid] = refListStore->children().size();
>> row[model_columns.code] = it.first;
>> row[model_columns.vlue] = it.second;
>> }
>> }
>>
>>
>> void
>> MainWindow::on_button_quit_clicked()
>> {
>> hide();
>> }
>>
>> MainWindow::~MainWindow()
>> {
>> }
>>
>> int main()
>> {
>> std::map<Glib::ustring, Glib::ustring> my_map1;
>>
>> my_map1.insert (std::pair<Glib::ustring, Glib::ustring> ("02", "Zero
>> -- Two"));
>> my_map1.insert (std::pair<Glib::ustring, Glib::ustring> (".2", "Point
>> -- Two"));
>> my_map1.insert (std::pair<Glib::ustring, Glib::ustring> ("11", "One
>> -- One"));
>> my_map1.insert (std::pair<Glib::ustring, Glib::ustring> ("01", "Zero
>> -- One"));
>> my_map1.insert (std::pair<Glib::ustring, Glib::ustring> (".1", "Point
>> -- One"));
>> my_map1.insert (std::pair<Glib::ustring, Glib::ustring> (".3", "Point
>> -- Three"));
>>
>> std::cout << "1st Sequence:" << std::endl;
>>
>> // C++11 for...
>> for (auto &it : my_map1)
>> std::cout << it.first << " ==> " << it.second << std::endl;
>>
>> std::cout << std::endl;
>>
>>
>> Glib::RefPtr<Gtk::Application> app = Gtk::Application::create();
>>
>> MainWindow main_window;
>>
>> return app->run (main_window);
>> }
>>
>> ----
>>
>
>
>
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